Concept explainers
Explain how the cavity wall works, draw the features of a cavity wall, and what are the most critical aspects of cavity wall construction.
Explanation of Solution
Working method of a cavity wall:
It is a type of wall that is constructed with two separate walls to form a single wall with some space or cavity between them. It consists of a vertical airspace between the outer and inner withers of masonry; it prevents the penetration of water through a masonry wall. There is no space or way to go down when the water reaches the cavity; the water can be collected at the bottom of the cavity with the help of flashing and drained through weep holes.
Show the features of the cavity wall as in Figure 1.
The most critical aspects of cavity wall construction are as follows:
- A clean cavity should be maintained, and it must be free from mortar droppings.
- It is necessary to provide weep holes at frequent intervals.
- To provide proper flashings.
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